Power-transmission mechanism and controlling means therefor



Z. P. CANDEI.

POWER TRANSMISSION MECHANISM AND CONTROLLING MEANS THEREFOR.

APPLICATION FILED SEPT. 5| I9I8. 1,322,534..

Patented N ov. 25, 1919.

4 SHEETS-SHEET I- I: I CT- :L

. Z. P. CANDEE. POWER TRANSMISSION MEC'HANISM AND CONTROLLINGNIEANS THEREFOH.

APPLICATION FILED sEPT.5. 1918.

1 ,322,5 34. Patented N 0V. 25, y1919.

ENAS )Q @ANDER IN VH1/7701i? Z. P. CANDEE.

POWER TRANSMISSION MECHANISM AND CONTROLLING MEANS THEREFOR.

APPLICATION FILED sPLs. 191s. f

m IH' i ZE/VA s' CAA/0 5 Z. P. CANDEE.

POWER TRANSMISSION MECHANISM AND CONTHOLLING-MEANS THEREFOR. APPLlcAnoN FILED SEPT. 5. |918.

1,322,534. PantedNw. 25, 1919.

4 SHEETS-SHEET 4.

ZENAs r. CANIJEE, or WATERBIIItv, CONNECTICUT, AssIGNoa To THE WATERBURY FARREL FOUNDRY AND MACHINE COMPANY, or WATERBURY, CONNECTICUT, A

CORPORATION or CONNECTICT,

POWER-TRANSMISSION MECHANISM AND CONTROLLING MEANYSTHEREFOR.

To all whom, iti-may concern:

Be it known that l, ZnNAs P. CANDEE, a

citizen of the United States, residing at l Transmission Mechanism and Controlling` Means Therefor, of which the following is a specification, reference being had therein to the accompanying drawings. Y'

The present invention reiates to machines, such as power presses, for example, and has for its object, among other things, to pro vide a simple and efficient mechanism for controlling the operation of the working parts or a machine, whereby the same may be intermittently operated, under control of the operator, without shuttting ott the continuous power by means of which said working parts are operated. Y

The improvements hereinafter set forth, in the broadest aspect thereof, consist essentially in the provision of controlling means between lthe power driving means and power transmitting means of a machine and said controlling means being associated with av device or devices, tov which motionV is given by stored up energy, taken from one operation of the machine and utilized to operate said controlling means whereby a subsequent operation of mitted.

An embodiment of the'invention is illusl trated in the accompanying drawings, andV hereinafter described as applied to, a particular type of power VVpress, forming the subject matter of another invention, but it will be understood, the `improvements mayV also be applied, with advantage, to various types `of powerpresses or other machines to-l which they are applicable.

, Referring to the drawings, inYYY which like numerals of reference designate like parts iii the several figures?? Figure 1 side elevation of a press, showing the working parts'thereof in apo sition of rest;

Fig. 2, is a iront elevation of a press,

showing in full lines, the improved con,-

trol mechanism and parts ofthe pressV directly associated with said mechanism;

3 is a .detail sectional view showing one form and arrangement of power de- Specification of Letters Patent.

relationship the machine is effected or .pe'r- PatentedNov. 25, 1919.

Application I,sieri lseptember 5, isis. serai No. 252,758.

vices, power transmitting mechanism, and a controlling clutch devicev as applied to a power press, for instance;

Fig. 4t is a detail view showingparts of the improved control mechanism, onefpart.

beingmounted on a shaft shown in section, taken upon line t-d of Fig.v 5;

Fig. 5 is adetail view showing other parts;

of the said control mechanism Fig. 6 is a detail view showing a part of Vthe latch device; and

Fig. 7 is a detail sectional view, taken upon line 7 7 of Fig. 5.

l. u Referring to tiie drawings, the-numeral 1 designates the bed of the machine supporting standards 2, constituting a frame in which the operating element 3 is caused to reciprocate by action of the crank shaft 4t. Rotative motion is imparted to said crank shaft by the main shaft 5 through a suitable 7 reducing driving gear consistingof pinion 6 fixedly mounted on said main shaft and meshing .with gear wheel 7 iiXedly mounted f on Athe crank shaft 4i. The main shaft-5 has mounted thereon the usual driving' and controlling Vdevices consisting of the `ii'Xed pulley 8, loose pulley 9, balance wheel 10 and fricticn clutch 11.

The improved controlling mechanism coni prises a rock shaft 12'," on which is mounted a plurality of devices performing functions hereinafter set forth, said devices' consisting of a clutch operating block 13, fixed on said shaft, and having a cam groove 1li at each side thereof; a collar 15 heldin place set Y screw 16 Vand Veiiipleyedto' properly position,

the shaft 12; a brake actuating cani device 17 fired ontlie shaft -'and having horns orprojl@ niovably mounted on the shaft 1:2y and having a limited sliding movement 'on the feather 20; an adjlustable block 21 sliding on feather Q0 and retained in a fixed position by set screw 2Q; and an arm 23, free relatively to the shaft, when not engaged by block Z1 in its iixed positionon the shaft 12. This shaft l2l turns in bearings 24rcarried on lugs 25a provided on bracket, which'is secured to one of the standards 2. f Y

` The rockshaft 12is operated by ineansof acam 26 from the hub 9,7 of the gear wheel 7, towhich the cam is bolted on a shouldered portion 28 of the said hub 27, theV bolts-29-l ctionslS; arlhand Voperated'lever head 19' l by the cam 26 may be set in adjusted positions relatively to the crank shaft 4. operatingilever 30 is pivotally mounted at one end on the studor shaft 31 and the free end Yof this lever is forked and carries an antifriction roller 32 which engages a bar 33 passing throughthe'forked end of said lever.

A cam rollerA 34 is carried on the lower edge of thevlever 30, intermediate of itsends,

,and said cainroller engages' the cam 1 26- in a manner so that when the cam roller Vis engaged at the highest point ofthe cam,

the lever will 'be lifted. VA'latch and tripping device is employed vto make and, ybreak Yoperative engagement of the lever 30 Vwithvthe bar 33, through the means of a catch bloc'k35' engaging the edge of a hard lmetal piece 36 inserted in the notch 37 on i Vthe bar. 33.v Thecatch block is moved into or out of an engaged vposition by crank 384 fixed on pinl 39. The crank 38 1s op- "erated by cranks 4Qv andv 41, constituting a bell 'crank lever, pivotedon'shaft 42, carried by lug 43 on lever 30. l Motion is given tothe said bell crank lever, in the direction vtorelease the catch 35, by means" of a pull "cord or rod 44, operated by a treadle 45, and

such motion is transmitted' to the crank 38 by connecting bar 46.

-The lowerend of the connecting bar 33V is threaded and carries an adjustable forked .'head 47 which is pivotally mounted on pin Y Ving block and the grooves 14on the.

48 in lug 49 on thearm 23. A companion lug 50, onjthe arm 23', hasrpivotally connected thereto, also on pin 48, the: forked end 51 of a connecting bar 52, which is practically an extension of -the bar-.33. The

lower end of the bar 52 is'connected to a weighted dash-pot plunger 53 which slides within dash-pot cylinder 54, so that sudden fall of the plunger is checked.

The power transmission clutch 11 mounted on the main or power shaft 5V is of any'l ordinary suitable type, and the clutch elements .thereof areengaged and disengaged lby'means of the usual sliding block 55 Vand yoke device'56. According to the present'V invention, the? said sliding block55 is operated by means of clutch `levers 57 pivotal ly mounted on bracket 58, which is'secured to bracket. 2 5.' The levers 57 are provided" with lugs 59 and 60 at each end, which engage respectively the groove y,61 in the slidclutchcam block 13.y By this engagement, when the rock shaft 1 2 is partly rotated in fone direction, theends of the lever 57,

engaged by the clutch block 13, moveoutfv wardly andthe other ends of said lever move inwardly, whereby thel clutch is throwninto an engaged position. ln a reverse rotation ofthe rock shaft, a reverse operation Vof the clutch lever is effectedl and thenlthe clutch is disengaged and left to vrun freely.

A brake device is provided and acts simulvltaneouslywwith the operation ofthe clutch,

'and which brake device comprises .a pair of Vbrake shoes 62 carried atfthe outerends of the brake levers 63, andV .in their operative yposition engaging the periphery ofr theV clutch l1. Brake leversj63A arefpivotally connected at an intermediatepoint to projecting arms 64 of the bracket 58, The inner ends of the brake levers are drawn together by a springfG, so that normally the brake shoes are held inthe olf/for non-contact position. The brake cam 17 by means of the horns 18 thereon, engaging the ends operation'of the lock shaft 12, and indirectly therebythe clutch 11,'may be effectedA inanually if desired. When the operation of the @rock shaft is to be ,entirely manual, it Vis.

necessary that the sliding block 21 should be loosened and moved on the" feather 20 sothat the clutch elements 67 and 68, pro vided respectively'on the block 21 and the yhead or lever end 19, are engaged `and the clutch elements 69 and 7 0 respectively'` provided on the said' block 21 andarm 23, `are separated. In the position, when the lever head 19 engages the block 21, the rock shaft 12 may be turned'to operate'theclutchindependently of :the controllingpmechanism hereinbefore described.

mechanism, when the sliding block 2 1 ,per-' manently. engages the Varm 2,3,.is as follows: `Assum1n`g thatthe power for operating The operation'ofjtheV aforesaid controlling l the press is running and the gate or operating member 3 1s in a state Vof* rest, at the highestypoint of its travel, or yany other" relative `position which may be determined by setting the cam 26 indifferent positions, the opera-ting lever 30 isthen raised to its highest position bythe cam 26, the latch device y35-36 being engaged, the connecting bar 33' is .raised with the lever 30, Vand the raising of the bar 33 has turned the arm 23 and block 21 as one bodyy and with said latter members the,r0ck .shaft. 12 is Vturned approximately 80V of a V'.revolution, sufficient to operate the clutch and brake actuating mechanism and thus' effect a discontinuation of the action' of thepress. The arm 23 also raises bar 52and with vthe latter member the weighted'dash-pot plunger 53 is lifted. 'lhe latch device'V holds the bar 33in the' raised position against the weight l of the dashfpot .plunger 53 and when the Y treadle 45 is.l depressed. the/trip Vdevice is operated to `releasethe latchlp. The .bar 33Vl and arm23 are thenlcaused to"fall"by releasing the weighted'd'ashfpotplunger and! the rock shaft is thereby turned in the reverse direction approximately 80o of a revolution to operate the means for freeing the brakes and clutch. The a complete operation and when the cam leverl 30 is at its lowest point and the cam roller 34 engages the fiat surface 71l on the cam 26, the said lever 30 'again picks up the bar 33 if the latch device is engaged. 'TheOperation of the controlling mechanism is then repeated but if the operator constantly holds the treadle-45 in a depressed position the latch device will not' .engage the bar 33,

consequently the press willrun continuously while power 'is applied thereto regardless of said controlling mechanism.- f Y Gbvious modifications may be made with-V out departing from the spirit of the invention as defined in the appended claims.

Having described my invention; what I 'claim as new and desire to secure by'Letters Patent, isz l. In a machine of the class described operating and controlling mechanism comprising a clutch; a rock shaft; a cam connected with said shaft; a member for actuan ing said clutch and receiving motion fromY said cam; an oscillating member; a connecting rod transmitting motion from `saidmember to said rock shaft; and means whereby energy from a preceding operation of said oscillating member is stored up to operate said rock shaft to engage said clutch.

2. In a machine of the class described operating' andcontrolling mechanism comprising a clutch; a rock'shaft; a cam connected withsaid shaft; a member for ac-k tuating said clutch and receiving motion from said cam; an oscillatingmember; a connectingY rod said member to said rock shaft; means whereby energy from ya preceding operation of said oscillating member is stored upto operate .said rock shaft to engage said clutch; and a device for breaking the connection between said oscillating member and said connecting rod so as to permit operation of said means. i

3. In a machine of the class described,'the combination with a power shaft; of controlling mechanism; comprising a clutch; a

rock shaft; a cam connected with said shaft; a member for actuating said clutch and receiving motion from said'cam; a cam on said power shaft; an operating lever ac;

tuated by said last mentioned cam; a mem" ber coperatively connecting said lever to said rock shaft; means for; making and breaking the connection between said lever l and member to allow independent movement of said member; and a device associated with said member for independently operating said rock shaft to impart rotarymovement thereto. Y

4:. In a machine of the class described, thev press then performs transmitting motion from combination with a power shaft;'of controlling mechanism, comprising a rock shaft; a cam on said rock shaft; a clutch; a member between said cam and clutch having operative connection with a cam on said power shaft; an operating lever actuatedby said cam; a member coperatively connecting said lever to said rock shaft; means for making Vand breaking the connection between said lever and membertoallow in'- dependent movement of said member a1 device vassociated with saidV member for Vinde-1 pendently operating said rock shaft tooperate said clutch; and means for retarding the action of said device. f l

5. In a-machine of the ,class described; the combination of ai power 'shaft and a crank shaft driven thereby throughthe medium of a clutch; means for operating said clutch to obtain intermittent operationv lof said crank shaft; a rock shaft for imparting motion to the clutch operating means; and means actuated by said crank shaft for operating said rock shaft in one direction and to store up energy whereby said rock vshaft is operated in a reverse direction; said means comprising a lever transmitting motion vto' said rock shaft through a pull member, a make and break connection -between said lever and member, and a device associated with saidr member for operating said rock shaft when the connection between said lever and member iS broken.

" 6. In a machine of the class-described; a driving element; a driven element; aclutch interposed between said elements;'a rock shaft actuating said clutch; and means operated by'said 'driven' element whereby said. rock shaft is positively rotated thereby7 .in one direction and in a reverse direction by energy stored up in said'means, said means comprising a lever transmitting motion to said rock shaft through a pull member, a make-and break connection between said lever and member; and a device associated 'with said member for operating said rock shaftwhen the connection between said lever and member is broken. l Y 1 7. In a machine having a power shaft driving a crank shaft through aclutch; a rock shaft' actuating said clutch; and means operated by said crank shaft whereby said rock shaft is rotated directly inone direction and indirectly in a reverse direction by stored up energy, said means-comprising a lever transmitting motion-tosaid rock shaft through a pull member7 a make and break connection' between said lever and member, and a device `associated with said member for operating said rockshaft when the connection between said l'everand member is" broken. f

8. In af' press having power driving ele# ments and power transmitting and control-- ling mechanism; the vlatter comprising f ay clutch, a crankshaft, and 4a' rook shaft;`

clutch levers for actuating said clutch from `said rock shaft; a cam onsaid crank shaft;l a cam lever having a lifting movement im-kv. parted thereto bysaid cam; a pull member having a severable connection with said lever engaged during-.the upward movement of said lever to effect operation of said rock.

shaft in one direction ofrotation and 1anV energy'stormg device associated with said rock shaft andoperated-tliereby to store upen-v ing a'cam, acam lifted lever, 'and a 4pull member havingl a separable connection with said lever for Yimparting b rotative vmotion yduring the upward movement of said lever to' said rock'shaft from said crankshaft in one direction of rotation and adevice connected to said pull member in whichenerg imparted to ysaid means is stored up and subsequentlyv utilized to rotate said rock shaft in a reverse direction.

10. In a machine of the class. described, power transmitting mechanism having ra crank ishaft, a rock shaft, a clutch, 'and means for 4actuating and controlling said clutch, said means comprising a lifting lever operated bysaid crank shaft; a pull rod severably connected tol said lever andtransmitting motion therefrom to saidrock shaft;

vmeans -for Veffecting a connection between. said lever and said pull rod; .and a trippingv device carried byj said lever whereby the connection betweensaid lever and said pull rod :is broken at predetermined times.

1l. In a machineof thecl'ass described; power transmission mechanism and control-Y ling means having a power shaft, a rock shaft, and a clutch; actuating and controllingV meansv for said clutch operatively associated with said Irock shaft, said means comprising al member operated yby said Y powerV shaft, and a device' effecting a connection between said member and said rock` shaft controlled byl a latch andtrippingde-l vice mounted on saidmember vand operatable at predetermined times. i

l2. In a machine of the .class describediY power transmission and controlling means. comprisingafpower. shaft, a rock shaft, 'and'v 4 a clutch; actuating VAand-controlling means 60,

for said clutch operatively associated with said rock-shaft, said means comprising a main operating lever engaged by a cam'on said power shaft; a connecting member secured'between-said main lever and an armlcarried by: said rock shaft, Vav cam Vblock onV said rock shaft, vclutch leversitransmitting.

motion. from said cam block vtosaidclutch; and a device carried by said mainrlever for making and breaking aV connection .eifected byV said connecting member V`betweensaid main lever and said arm. Y 13. Iny a machine .of the class described,

power transmission and rcontro-lling mechanism having a crankshaft, a rock shaft', a clutch, and actuating angel vcontrolling means for said clutch operativelyassociated with Y said rock shaft, said means comprising an, y operating lever engagedby a cam'on said;

power shaft, a connecting device forv establishing an operative relation between said;

lever and said rock shaft,fwhereby rotation o f the latter member is effected in one direction, means whereby such yrotation-ofthe rock shaft stores up energy for effecting ai reverse rotation of said rockshaft, and a tripping device carried by' said operating lever releasable at predeterminedv times for breaking said operative relationbetween the said lever` and said rockV shaft to permit said reversed operation 'of the rock shaft;

14. VIn a machine having ypower transmitting'and controlling mechanism :for eifecting an intermittent operation of the working-V elements ofthe machine; a crank shaft; a

clutch device; -a rock :shaft operating saidclutch device-and being rotated in one direction by said crank shaft to disengage said clutch; a member operated bya cam on *saidV crank shafteffecting said operation; and a bar connecting said-member withY said rockA shaft; a-Ydevice associated with said bar and said rock shaft wherein when saidY bar is raised by said memberenergy is stored up to rotate said rock shaft in a reverse 'direction-to engage said clutch; and means carried yby said vmember and said bar for 4releasing said bary fromvits engagedposition relatively to said memberwhereby sai'dfieverse operation of the shaft y'is effected by the ,selfaction of said device.

' l5. In aimarchine having Vpow-er transmit-V tingrand controlling mechanism for effecting I either a continuous or an intermittent 'operation of `the working elements of the machine; a crank shaft; a clutch device; a rock shaft operating means for ydisengaging said cliitchdevice, when rotated in oiie'dii'ection by said crank shaft, through, the inedium of means, comprising a movable member operated avscam mounted ,oni said crank shaft and an element connecting said movable memberwith said rock shaft; a device associated with V said roc-k Yshaft Vand ca-Y pablerof.beingpoperated tofstore :up energyy whereby said rock shaft is rotatedgina reverse.: directionk to iei'i-gage said'A clutch, a tripping devicefor izo l ,making-and, breakingV f the connection between said fmovable member and said element to obtain intermittent 'operation ofthe vworking, elemei'its `of the machine; and manually operated means for disengaging and independently operating the rock shaft whereby a continuous operation of said elements is obtainable.

16. ln a machine of the class described; a crank shaft; a rock shaft; a clutch actuated by means operated'by said rock shaft; means for rotating said rock shaft and disengaging said clutch, said means comprising a lever, a cam on said crank shaft operating said lever,r an element Connecting said rock shaft to said lever, a latch and tripping device for making and breaking said connection between said lever and said element, an arm secured to the said rock fshaft at one end and to the said element at the other end, a weighted dash-pot plunger connected to said arm; and means for. releasing said tripping device to permit said weighted plunger, which is raised by operation Yof the rock shaft 'when operating to disfall and rotate said Yrock shaft in a reverse dir ction4 to engage ge the clutch, to

enga

Said clutch. Y,

17. In a machine of the class described, a crank shaft; arock shaft; a clutch actuated by means operated by said rock shaft; a

' 'brake' for said clutch operating simultaneously therewith; means for rotating said rock shaft and disengaging said clutch and said brake, said means comprising a lever, a cam on said rock shaft operating said lever, an element connecting said rock shaft to said lever7 a latch and tripping device for making and breaking said connection between said lever and said element, an arm secured to said rock shaft at one end and to the said element at the other end, a weighted dash-pot plunger connected to said arm, and means for releasing said tripping device to permit said weighted plunger, which is raised by' operation of. the rock shaft when operating te disengage the clutch, to rotate said rock shaft in aV reverse direction to en@ gage said clutch.

18. In a machine of theclass desciibedga crankshaft; arock shaft; a clutch actuated by means operated by said rock shaft; means engaging said clutch. said means comprising a lever7 a cam on said rock shaft engaging and operating said lever, an element con:- necting said rock shaft to said lever, a latch and tripping device for making and breaking said connection between said lever and said element, an arm secured to said rock shaft at one end and to the said element at the other end, a weighted dash-pot plunger connected to said arm, means for releasing said tripping device to permit said weighted plunger, which is raised by operation of the rock shaft when operating to disengage the clutch, to fall and rotate said rock shaft in a reverse direction to engage making and breaking the connection be-` tween lsaid operating member and said connectingmember. I

20. In a control mechanism as described; an operating member; an operated member; a power transmission connecting member communicating motion from said operating for rotating said rock shaftl and disf member to said operated member; and independently actnatable means operated from Va distant vpoint and carried by and moving with said operating member for making and Vbreaking an v operative relation between said Ymembers. f

In testimony whereof I have hereunto affixedv my signature.

znnas P. CANDEE. 

